Lexmark Optra S Service Manual - Page 95
The elevator tray does not move up or down. The printer, recognizes that the option is installed
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4059-XXX The elevator tray does not move up or down. The printer recognizes that the option is installed. FRU 1 Stepper Motor High Capacity Feeder Option Control Board Stepper Motor Extension Cable Action Be sure the motor cable is correctly installed at J1 on the high capacity feeder system board. Be sure the motor extension cable is properly connected to the motor cable. Check the cables for damage or loose wires. Disconnect the motor and check for a short between each pin and the motor housing. If a problem is found, replace the motor. Measure the resistance between the following pins on the motor cable connector: Pins 1 (orange) and 3 (green) Pins 2 (yellow) and 4 (white) They measure between 10 and 15 ohms. If incorrect, replace the motor assembly. If correct, replace the high capacity feeder control board. Diagnostic Information 2-68